Bug 322711

Kate crashed when I tried to scroll in a regular (small) text document dragging the mouse on the bar. I had about 5 similar documents open. The file was on a seperate ext4 partition mounted in /media/. The partition was still mounted after the crash. I've had this bug twice today and never before that.

Reproducible: Couldn't Reproduce

Steps to Reproduce:
1. Scroll
2. Be lucky
Actual Results:  
Occasionally a crash; usually nothing.


Application: kate (3.10.4)
KDE Platform Version: 4.10.4
Qt Version: 4.8.4
Operating System: Linux 3.8.0-26-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
<In detail, tell us what you were doing  when the application crashed.>

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kate (kate), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f46d50a67c0 (LWP 8971))]

Thread 4 (Thread 0x7f46bf6d8700 (LWP 8973)):
#0  0x00007f46d1b87359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f46d1b875b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46d1b480d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46d1b486ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f46c77754f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f46d1b6beb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f46d201af8e in start_thread (arg=0x7f46bf6d8700) at pthread_create.c:311
#7  0x00007f46d49ede1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f46af659700 (LWP 8975)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f46b5183e77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f46b5183ea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f46d201af8e in start_thread (arg=0x7f46af659700) at pthread_create.c:311
#4  0x00007f46d49ede1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f46bfed9700 (LWP 9078)):
#0  0x00007f46d1b19280 in pthread_mutex_lock@plt () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f46d1b875c1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46d1b4790b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46d1b480fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f46d1b48304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f46d2914036 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f46d28e438f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f46d28e4618 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f46d27e6410 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f46d28c5edf in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f46d27e8bec in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f46d201af8e in start_thread (arg=0x7f46bfed9700) at pthread_create.c:311
#12 0x00007f46d49ede1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f46d50a67c0 (LWP 8971)):
[KCrash Handler]
#5  0x00007f46d28fd699 in QObject::connect(QObject const*, char const*, QObject const*, char const*, Qt::ConnectionType) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f46d2902e1a in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f46d2902f66 in QTimer::singleShot(int, QObject*, char const*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f46d28fa0ef in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f46b5842bc2 in KateView::displayRangeChanged(KateView*) () from /usr/lib/libkatepartinterfaces.so.4
#10 0x00007f46b585aa6d in ?? () from /usr/lib/libkatepartinterfaces.so.4
#11 0x00007f46b585af41 in ?? () from /usr/lib/libkatepartinterfaces.so.4
#12 0x00007f46d28fa0ef in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#13 0x00007f46d447e191 in QAbstractSlider::sliderMoved(int) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#14 0x00007f46d41d3c7e in QAbstractSlider::setSliderPosition(int) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f46d4260d88 in QScrollBar::mouseMoveEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#16 0x00007f46b5872705 in ?? () from /usr/lib/libkatepartinterfaces.so.4
#17 0x00007f46d3e5fabb in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#18 0x00007f46d42614eb in QScrollBar::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f46d3e128ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007f46d3e15a33 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007f46d30eaaf6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00007f46d28e563e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f46d3e18933 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f46d3e8dec4 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#25 0x00007f46d3e8cef1 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#26 0x00007f46d3eb80b2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#27 0x00007f46d1b47f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f46d1b48248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f46d1b48304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f46d2914016 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#31 0x00007f46d3eb81ae in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#32 0x00007f46d28e438f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#33 0x00007f46d28e4618 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#34 0x00007f46d28e9cf6 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#35 0x00007f46d4cc2e8d in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kate.so
#36 0x00007f46d4915ea5 in __libc_start_main (main=0x4006d0, argc=1, ubp_av=0x7fffc12a27b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc12a27a8) at libc-start.c:260
#37 0x0000000000400701 in _start ()

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